Equipped with up to 32 analog FXS/FXO ports, up to 8 BRI ISDN ports, and 1 E1/T1 PR, 1 T1 CAS, or 1 E1 R2 port, XR2000 can also connect to external Astribank units to expand a total up to 160 PSTN/ Analog phones ports, and up to 200 users to meet larger communication needs. In addition, XR2000 also comes with a variety of user-friendly features such as Interfaces in Different Languages, Call Queues, and Echo Cancellation ensuring customers a smooth communication experience.